Add support for LocalDate (or OffsetDateTime, etc.) in HttpRequestMessage<Optional<T>> in Functions with Spring Cloud

#### Investigative information

Please provide the following:

- Timestamp: 2023-03-16T10:26:35.390Z
- Function App name: local development
- Function name(s) (as appropriate): local development
- Invocation ID: local development
- Region: local development

#### Repro steps

Provide the steps required to reproduce the problem:

1. Define any POJO with a `LocalDate` or `OffsetDateTime` property, e.g. `User`
2. Use the POJO as request body for your HTTP call, e.g. `HttpRequestMessage>`
3. Build & run your Application (`mvn azure-functions:run`)
4. Call your function and define the request body as defined in the POJO

#### Expected behavior

Provide a description of the expected behavior.

After Step 4 I expect to have called the function successfully

#### Actual behavior

Provide a description of the actual behavior observed.

Step 4 won't work because I always get the same error message as follows:

```
[2023-03-16T10:26:35.390Z] [WARNING] {CheckedBiFunction.tryApply}: InaccessibleObjectException: Unable to make field private final int java.time.LocalDate.year accessible: module java.base does not "opens java.time" to unnamed module @2b05039f
[2023-03-16T10:26:35.447Z] Executed 'Functions.person' (Failed, Id=c4d45e9c-b0df-49ab-9051-004d3e8a384b, Duration=288ms)
[2023-03-16T10:26:35.450Z] System.Private.CoreLib: Exception while executing function: Functions.person. System.Private.CoreLib: Result: Failure
Exception: ClassCastException: Cannot convert com.microsoft.azure.functions.worker.binding.RpcHttpRequestDataSource@3a19100ato type com.microsoft.azure.functions.HttpRequestMessage>
Stack: java.lang.ClassCastException: Cannot convert com.microsoft.azure.functions.worker.binding.RpcHttpRequestDataSource@3a19100ato type com.microsoft.azure.functions.HttpRequestMessage>
[2023-03-16T10:26:35.455Z] at com.microsoft.azure.functions.worker.binding.DataOperations.generalAssignment(DataOperations.java:191)
[2023-03-16T10:26:35.460Z] at com.microsoft.azure.functions.worker.binding.DataOperations.apply(DataOperations.java:120)
[2023-03-16T10:26:35.462Z] at com.microsoft.azure.functions.worker.binding.DataSource.computeByType(DataSource.java:56)
[2023-03-16T10:26:35.470Z] at com.microsoft.azure.functions.worker.binding.RpcHttpRequestDataSource.computeByType(RpcHttpRequestDataSource.java:20)
[2023-03-16T10:26:35.477Z] at com.microsoft.azure.functions.worker.binding.DataSource.computeByName(DataSource.java:42)
[2023-03-16T10:26:35.479Z] at com.microsoft.azure.functions.worker.binding.RpcHttpRequestDataSource.computeByName(RpcHttpRequestDataSource.java:20)
[2023-03-16T10:26:35.496Z] at com.microsoft.azure.functions.worker.binding.BindingDataStore.getDataByName(BindingDataStore.java:59)
[2023-03-16T10:26:35.505Z] at com.microsoft.azure.functions.worker.binding.ExecutionContextDataSource.getBindingData(ExecutionContextDataSource.java:176)
[2023-03-16T10:26:35.511Z] at com.microsoft.azure.functions.worker.broker.ParameterResolver.resolve(ParameterResolver.java:44)
[2023-03-16T10:26:35.518Z] at com.microsoft.azure.functions.worker.broker.ParameterResolver.resolveArguments(ParameterResolver.java:22)
[2023-03-16T10:26:35.525Z] at com.microsoft.azure.functions.worker.broker.EnhancedJavaMethodExecutorImpl.execute(EnhancedJavaMethodExecutorImpl.java:20)
[2023-03-16T10:26:35.528Z] at com.microsoft.azure.functions.worker.chain.FunctionExecutionMiddleware.invoke(FunctionExecutionMiddleware.java:19)
[2023-03-16T10:26:35.552Z] at com.microsoft.azure.functions.worker.chain.InvocationChain.doNext(InvocationChain.java:21)
[2023-03-16T10:26:35.561Z] at com.microsoft.azure.functions.worker.broker.JavaFunctionBroker.invokeMethod(JavaFunctionBroker.java:125)
[2023-03-16T10:26:35.566Z] at com.microsoft.azure.functions.worker.handler.InvocationRequestHandler.execute(InvocationRequestHandler.java:37)
[2023-03-16T10:26:35.572Z] at com.microsoft.azure.functions.worker.handler.InvocationRequestHandler.execute(InvocationRequestHandler.java:12)
[2023-03-16T10:26:35.580Z] at com.microsoft.azure.functions.worker.handler.MessageHandler.handle(MessageHandler.java:44)
[2023-03-16T10:26:35.587Z] at com.microsoft.azure.functions.worker.JavaWorkerClient$StreamingMessagePeer.lambda$onNext$0(JavaWorkerClient.java:93)
[2023-03-16T10:26:35.589Z] at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
[2023-03-16T10:26:35.603Z] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
[2023-03-16T10:26:35.615Z] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[2023-03-16T10:26:35.627Z] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[2023-03-16T10:26:35.629Z] at java.base/java.lang.Thread.run(Thread.java:833)
```

#### Known workarounds

Provide a description of any known workarounds.

The current workaround would be to use a `String` instead of the immutable date objects. But that would not be suffice, because in our project we want to work with generated models that uses the ISO datetime.

Another workaround would be that we use `Java.util.Date` when generating our models, but I don't really like the idea of using that.

#### Related information

Provide any related information

* Programming language used: Java 17
* Bindings used: EventHubBinding, HttpTrigger

Source

```java

@Component
@RequiredArgsConstructor
public class PersonHandler {

private final Person person;

@FunctionName("person")
public HttpResponseMessage execute(
@HttpTrigger(
name = "request",
methods = {HttpMethod.POST, HttpMethod.DELETE},
authLevel = AuthorizationLevel.ANONYMOUS
) HttpRequestMessage> request,
@EventHubOutput(

) OutputBinding output,
ExecutionContext context) {

context.getLogger().info("Hello there, General Kenobi");

final User user= request.getBody().orElse(null);

if (user == null) {
return request
.createResponseBuilder(HttpStatus.BAD_REQUEST)
.body("Please do it right")
.build();
} else {
final CloudEvent event = person.apply(user);

final byte[] serializedEvent = Objects.requireNonNull(EventFormatProvider
.getInstance()
.resolveFormat(JsonFormat.CONTENT_TYPE))
.serialize(event);

output.setValue(serializedEvent);

return request
.createResponseBuilder(HttpStatus.OK)
.body("Sucess!")
.build();
}
}
}

@Component
@RequiredArgsConstructor
public class Person implements Function {

@Override
public CloudEvent apply(User user) {
try {
final ObjectMapper objectMapper = new ObjectMapper();
final byte[] serializedPojo = objectMapper.writeValueAsBytes(user);

final LocalDateTime now = LocalDateTime.now();
final ZoneId zone = ZoneId.of("Europe/Berlin");
final ZoneOffset zoneOffset = zone.getRules().getOffset(now);

return CloudEventBuilder.v1()
.withId(UUID.randomUUID().toString())
.withSource(URI.create("/some/uri"))
.withType("TYPE")
.withDataContentType("application/json")
.withSubject("SUBJECT")
.withTime(OffsetDateTime.of(now, zoneOffset))
.withData(serializedPojo)
.build();
} catch (JsonProcessingException e) {
return null;
}
}
}

4.0.0
com.example
beep
0.0.1-${revision}
com.example.beep

org.springframework.boot
spring-boot-starter-parent
3.0.1

BeepFunction

local
17

UTF-8

17
17

1.24.0
3.0.0
4.0.0
2.4.2
1.18.26

not relevant
not relevant
not relevant

westeurope
EP1
${project.build.directory}/azure-functions/${functionAppName}

com.example.BeepApplication

org.springframework.cloud
spring-cloud-function-adapter-azure


org.springframework.cloud
spring-cloud-starter-function-webflux
provided

org.projectlombok
lombok
${lombok.version}
provided


io.cloudevents
cloudevents-core
${cloudevents.version}


io.cloudevents
cloudevents-json-jackson
${cloudevents.version}


org.openapitools
jackson-databind-nullable
0.2.4


io.swagger.core.v3
swagger-annotations
2.2.8



jakarta.validation
jakarta.validation-api
3.0.2



jakarta.annotation
jakarta.annotation-api
2.1.1

org.springframework.boot
spring-boot-starter-test
test


org.junit.jupiter
junit-jupiter-api
test


org.mockito
mockito-core
2.23.4
test


org.assertj
assertj-core
3.24.2
test

org.springframework.cloud
spring-cloud-function-dependencies
${spring.cloud.function.dependencies}
pom
import


com.microsoft.azure.functions
azure-functions-java-library
${azure.functions.java.library.version}

com.microsoft.azure
azure-functions-maven-plugin
${azure.functions.maven.plugin.version}


org.apache.maven.plugins
maven-resources-plugin
3.3.0


org.apache.maven.plugins
maven-dependency-plugin
3.4.0


org.apache.maven.plugins
maven-clean-plugin

org.openapitools
openapi-generator-maven-plugin
6.3.0


generate-contract

generate


${project.basedir}/src/main/resources/some-spec.yaml
spring

true
true
true


@lombok.Builder @lombok.NoArgsConstructor @lombok.AllArgsConstructor


false
false





com.microsoft.azure
azure-functions-maven-plugin

${functionResourceGroup}
${functionAppName}
${functionAppRegion}
${functionAppServicePlanName}
${functionAppPricingTier}

${project.basedir}/src/main/azure/host.json
${project.basedir}/src/main/azure/local.settings.json

linux
17




FUNCTIONS_EXTENSION_VERSION
~4





package-functions

package






maven-clean-plugin
3.2.0



obj





org.springframework.boot
spring-boot-maven-plugin

```

DataOperations.java と RpcHttpRequestDataSource.java の binding path から始め、提供されている PersonHandler の例と `mvn azure-functions:run` を使って問題を再現します。LocalDate または OffsetDateTime を含む POJO が HttpRequestMessage> 用にどのように変換されるかを確認します。報告された例外なしでリクエストの binding が成功すれば完了です。

索引モデルが issue の本文から書いたものです。